Nucleus of the solitary tract and flavor aversion learning: relevance in concurrent but not sequential behavioral test.
Behav Brain Res
; 223(2): 287-92, 2011 Oct 01.
Article
en En
| MEDLINE
| ID: mdl-21565224
ABSTRACT
Theories relating the nucleus of the solitary tract to taste aversion learning (TAL) have received their main support from immunohistochemical research. In the present study, a behavioral analysis was performed on the effect of lesions of the intermediate nucleus of the solitary tract (iNST) on concurrent and sequential flavor aversion learning tasks. Bilateral lesions of the iNST impaired concurrent flavor learning, in which animals must discriminate between two simultaneously presented flavors paired with intragastric administration of a noxious or innocuous substance, respectively. However, the same iNST lesions did not interrupt the development of sequential flavor aversion learning, in which each flavor is offered individually on consecutive alternate days. These results behaviorally confirm the relevance of the nucleus of the solitary tract in TAL and suggest a functional dissociation between the neural systems underlying concurrent and sequential flavor aversion learning.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Reacción de Prevención
/
Gusto
/
Núcleo Solitario
Límite:
Animals
Idioma:
En
Revista:
Behav Brain Res
Año:
2011
Tipo del documento:
Article
País de afiliación:
España